STATISTICS PORTAGE LEARNING COMPLETE
COURSE REVIEW GUIDE
◉ Data.
Answer: things about which information can be collected and
analyzed
◉ Data set.
Answer: an arranged collection of information that contains the
various categories of data collected for a specific study
◉ Element.
Answer: Unique/individual entry in data set
◉ Variable.
Answer: a particular, measurable attribute that the researcher
believes is needed to describe the element in their study
◉ Observation.
Answer: All info collected for each element in study
◉ Qualitative.
, Answer: cant be measured, only classified as category (age, gender,
etc.)
◉ Quantitative.
Answer: Measure recorded on numerical scale (How many, How
much; children, salary, bank balance)
◉ Cross-sectional data.
Answer: information collected @ same or approx. same point in time
(Avg. GPA of grad Seniors from one college)
◉ Time series data.
Answer: collected over several time periods (PPG for conventional
Gas) [Fluctuations of data]
◉ Descriptive stats.
Answer: A compiled summary of the data analysis
numerical/ graphical methods to explore data [pi-chart, histogram]
--> Most commonly used numerical stat is called avg. or mean
◉ Statistical Inference.
Answer: Data collected from small portion of the larger group
(sample data) to make estimates on larger sets of data
COURSE REVIEW GUIDE
◉ Data.
Answer: things about which information can be collected and
analyzed
◉ Data set.
Answer: an arranged collection of information that contains the
various categories of data collected for a specific study
◉ Element.
Answer: Unique/individual entry in data set
◉ Variable.
Answer: a particular, measurable attribute that the researcher
believes is needed to describe the element in their study
◉ Observation.
Answer: All info collected for each element in study
◉ Qualitative.
, Answer: cant be measured, only classified as category (age, gender,
etc.)
◉ Quantitative.
Answer: Measure recorded on numerical scale (How many, How
much; children, salary, bank balance)
◉ Cross-sectional data.
Answer: information collected @ same or approx. same point in time
(Avg. GPA of grad Seniors from one college)
◉ Time series data.
Answer: collected over several time periods (PPG for conventional
Gas) [Fluctuations of data]
◉ Descriptive stats.
Answer: A compiled summary of the data analysis
numerical/ graphical methods to explore data [pi-chart, histogram]
--> Most commonly used numerical stat is called avg. or mean
◉ Statistical Inference.
Answer: Data collected from small portion of the larger group
(sample data) to make estimates on larger sets of data
